Suppose you have a bar chart. When we group by labels in a view, which of the following happens?

Suppose you have a bar chart. When we group by labels in a view, which of the following happens?
A . Nothing changes in the view, but a group is created in the Dimensions shelf.
B. The colours of the members selected are now the same, and different for the rest of the members.
C. Trick question! It is not possible to group by labels.
D. A new mark (bar) is created, which consolidates all members of the group.

View Answer

Answer: D

Explanation:

*Very important question*

If we select the labels in the view and then group, a new consolidated mark is created – in our case bar since we are talking about a bar chart in the question. See below:

Then on grouping, a new bar is created, and the colour of all bars remain the same.

Had we grouped by choosing the marks instead of the labels, the following would be the result:

Reference: https://help.tableau.com/current/pro/desktop/en-us/sortgroup_groups_creating.htm